Home / 13,875.39-19,147.66-7,587.77

Finding the Fourth Proportional to 13,875.39, 19,147.66 and 7,587.77

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Solution

The fourth proportional to 13,875.39, 19,147.66 and 7,587.77 is: 10,470.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.39 : 19,147.66 = 7,587.77 : x
  2. Step 2: Convert to fraction form
    13,875.39/19,147.66 = 7,587.77/x
  3. Step 3: Cross multiply
    13,875.39x = 19,147.66 × 7,587.77
  4. Step 4: Simplify right side
    13,875.39x = 145,287,925.41
  5. Step 5: Solve for x
    x = 145,287,925.41/13,875.39
  6. Step 6: Final answer
    x = 10,470.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.